[Asterisk-Users] Polycom IP 300/500 Conferencing Behavior

[Greg Boehnlein]

Hello,
	I've got a mixture of SPIP 300 and 500 phones in production for 
various clients. I've got the XML settings configured for local 
conferencing, but I'm not seeing the expected behavior from the phone when 
I attempt to conference two calls together. According to the manual, while 
talking to the first party, you simply hit Conference, dial the second 
party and then Conference to join them. This is supposed to put the first 
party on Hold until you bridge them together with the second press of the 
Conference button.
	That is all fine and well, but it doesn't quite work the way that 
the manual describes. Instead of joining the two calls together when the 
Conference key is pressed for the second time, the first party is taken 
off hold and hears dead silence. The only way to correctly join the 
parties is to hit the Hold and then Resume soft key, at which point all 
three parties can talk to each other.

As an illustration

Conf -> Dial -> Conf doesn't work.

However,

Conf -> Dial -> Conf -> Hold -> Resume DOES work.

	I'm running 1.3.4 firmware on all the phones, and I can't for the 
life of me figure out what is causing this problem. It is very likely some 
misconfiguration in the XML files, but I can't find it. Anyone have any 
suggestions?

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